Table 6. Standardization of the six-minute walk test used in previous studies.

Study	Track	N. of tests
Iwama et al.[11]	30 m	Two
Osses et al.[17]	30 m	Two
Ben Saad et al. [18]	40 m	Two
Troosters et al.[19]	50 m	Two
Gibbons et al.[10]	20 m	Four
Camarri et al. [20]	45 m	Three
Jenkins et al. [21]	30 m	One
Poh et al.[8]	45 m	Three
Alameri et al.[22]	30 m	One
Kim et al.[7]	30 m	Two
Fernandes et al.[23]	30 m	One
Present study	30 m	Two